ammonites
Forbes Shale - Petroleum Creek, Yolo (Cretaceous of the United States)

Where: Yolo County, California (39.0° N, 122.0° W: paleocoordinates 43.1° N, 86.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Forbes Shale Formation (Asuncion Group), Coniacian (89.3 - 85.8 Ma)

• Forbes Shale consists of clay shale and silty or sandy shale, with a thickness of 1300 ft or more. From fossil bearing beds overlying the Dobbins horizon.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

• No paleoenvironmental data reported.
• Shale.

Size class: macrofossils

Collection methods: quarrying,

• Collected by Bennison.

Primary reference: F.M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71 [A. Miller/A. Hendy/A. Hendy] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44233: authorized by Austin Hendy, entered by Austin Hendy on 06.09.2004

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)